EmbeddedArtists AB / Mbed 2 deprecated app_lcdboard_demo_mandelbrot

Example for the LPC4088 QSB Base Board

Dependencies:   EALib mbed

Graphics.cpp@1:b00a5c2416a7, 2014-04-09 (annotated)

Committer:
embeddedartists
Date:
Wed Apr 09 09:48:28 2014 +0000
Revision:
1:b00a5c2416a7
Parent:
0:7ce952ea2c4c 
Updated to latest version of EALib

Who changed what in which revision?

UserRevisionLine numberNew contents of line
embeddedartists 0:7ce952ea2c4c 1
embeddedartists 0:7ce952ea2c4c 2 #include "mbed.h"
embeddedartists 0:7ce952ea2c4c 3 #include "Graphics.h"
embeddedartists 0:7ce952ea2c4c 4
embeddedartists 0:7ce952ea2c4c 5
embeddedartists 0:7ce952ea2c4c 6 Graphics::Graphics(uint16_t *pFrmBuf, uint16_t dispWidth, uint16_t dispHeight)
embeddedartists 0:7ce952ea2c4c 7 {
embeddedartists 0:7ce952ea2c4c 8 this->windowX = dispWidth;
embeddedartists 0:7ce952ea2c4c 9 this->windowY = dispHeight;
embeddedartists 0:7ce952ea2c4c 10 this->pFrmBuf = pFrmBuf;
embeddedartists 0:7ce952ea2c4c 11 }
embeddedartists 0:7ce952ea2c4c 12
embeddedartists 0:7ce952ea2c4c 13 void Graphics::setFrameBuffer( uint16_t *pFrmBuf )
embeddedartists 0:7ce952ea2c4c 14 {
embeddedartists 0:7ce952ea2c4c 15 this->pFrmBuf = pFrmBuf;
embeddedartists 0:7ce952ea2c4c 16 }
embeddedartists 0:7ce952ea2c4c 17
embeddedartists 0:7ce952ea2c4c 18 int32_t Graphics::abs(int32_t v1) const
embeddedartists 0:7ce952ea2c4c 19 {
embeddedartists 0:7ce952ea2c4c 20 if (v1 > 0)
embeddedartists 0:7ce952ea2c4c 21 return v1;
embeddedartists 0:7ce952ea2c4c 22
embeddedartists 0:7ce952ea2c4c 23 return -v1;
embeddedartists 0:7ce952ea2c4c 24 }
embeddedartists 0:7ce952ea2c4c 25
embeddedartists 0:7ce952ea2c4c 26 /***********************************************************************
embeddedartists 0:7ce952ea2c4c 27 *
embeddedartists 0:7ce952ea2c4c 28 * Function: swim_put_line_raw
embeddedartists 0:7ce952ea2c4c 29 *
embeddedartists 0:7ce952ea2c4c 30 * Purpose: Draw a line on the physical display
embeddedartists 0:7ce952ea2c4c 31 *
embeddedartists 0:7ce952ea2c4c 32 * Processing:
embeddedartists 0:7ce952ea2c4c 33 * See function.
embeddedartists 0:7ce952ea2c4c 34 *
embeddedartists 0:7ce952ea2c4c 35 * Parameters:
embeddedartists 0:7ce952ea2c4c 36 * win : Window identifier
embeddedartists 0:7ce952ea2c4c 37 * x1 : Physical X position of X line start
embeddedartists 0:7ce952ea2c4c 38 * y1 : Physical Y position of Y line start
embeddedartists 0:7ce952ea2c4c 39 * x2 : Physical X position of X line end
embeddedartists 0:7ce952ea2c4c 40 * y2 : Physical Y position of Y line end
embeddedartists 0:7ce952ea2c4c 41 *
embeddedartists 0:7ce952ea2c4c 42 * Outputs: None
embeddedartists 0:7ce952ea2c4c 43 *
embeddedartists 0:7ce952ea2c4c 44 * Returns: Nothing
embeddedartists 0:7ce952ea2c4c 45 *
embeddedartists 0:7ce952ea2c4c 46 * Notes: None
embeddedartists 0:7ce952ea2c4c 47 *
embeddedartists 0:7ce952ea2c4c 48 **********************************************************************/
embeddedartists 0:7ce952ea2c4c 49 void Graphics::put_line(int32_t x1, int32_t y1, int32_t x2, int32_t y2, int16_t color)
embeddedartists 0:7ce952ea2c4c 50 {
embeddedartists 0:7ce952ea2c4c 51 int32_t e2, sx, sy, dx, dy, err;
embeddedartists 0:7ce952ea2c4c 52
embeddedartists 0:7ce952ea2c4c 53 /* calculate delta_x and delta_y */
embeddedartists 0:7ce952ea2c4c 54 dx = abs(x2 - x1);
embeddedartists 0:7ce952ea2c4c 55 dy = abs(y2 - y1);
embeddedartists 0:7ce952ea2c4c 56
embeddedartists 0:7ce952ea2c4c 57 /* set the direction for the step for both x and y, and
embeddedartists 0:7ce952ea2c4c 58 initialize the error */
embeddedartists 0:7ce952ea2c4c 59 if (x1 < x2)
embeddedartists 0:7ce952ea2c4c 60 sx = 1;
embeddedartists 0:7ce952ea2c4c 61 else
embeddedartists 0:7ce952ea2c4c 62 sx = -1;
embeddedartists 0:7ce952ea2c4c 63
embeddedartists 0:7ce952ea2c4c 64 if (y1 < y2)
embeddedartists 0:7ce952ea2c4c 65 sy = 1;
embeddedartists 0:7ce952ea2c4c 66 else
embeddedartists 0:7ce952ea2c4c 67 sy = -1;
embeddedartists 0:7ce952ea2c4c 68
embeddedartists 0:7ce952ea2c4c 69 err = dx - dy;
embeddedartists 0:7ce952ea2c4c 70
embeddedartists 0:7ce952ea2c4c 71 while (1)
embeddedartists 0:7ce952ea2c4c 72 {
embeddedartists 0:7ce952ea2c4c 73 if ((x1 >= 0) && (x1 < this->windowX) &&
embeddedartists 0:7ce952ea2c4c 74 (y1 >= 0) && (y1 < this->windowY))
embeddedartists 0:7ce952ea2c4c 75 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:7ce952ea2c4c 76
embeddedartists 0:7ce952ea2c4c 77 if ((x1 == x2) && (y1 == y2))
embeddedartists 0:7ce952ea2c4c 78 return;
embeddedartists 0:7ce952ea2c4c 79
embeddedartists 0:7ce952ea2c4c 80 e2 = 2 * err;
embeddedartists 0:7ce952ea2c4c 81 if (e2 > -dy)
embeddedartists 0:7ce952ea2c4c 82 {
embeddedartists 0:7ce952ea2c4c 83 err -= dy;
embeddedartists 0:7ce952ea2c4c 84 x1 += sx;
embeddedartists 0:7ce952ea2c4c 85 }
embeddedartists 0:7ce952ea2c4c 86 if (e2 < dx)
embeddedartists 0:7ce952ea2c4c 87 {
embeddedartists 0:7ce952ea2c4c 88 err += dx;
embeddedartists 0:7ce952ea2c4c 89 y1 += sy;
embeddedartists 0:7ce952ea2c4c 90 }
embeddedartists 0:7ce952ea2c4c 91 }
embeddedartists 0:7ce952ea2c4c 92 }
embeddedartists 0:7ce952ea2c4c 93
embeddedartists 0:7ce952ea2c4c 94 /***********************************************************************
embeddedartists 0:7ce952ea2c4c 95 *
embeddedartists 0:7ce952ea2c4c 96 * Function: plot4points
embeddedartists 0:7ce952ea2c4c 97 *
embeddedartists 0:7ce952ea2c4c 98 * Purpose:
embeddedartists 0:7ce952ea2c4c 99 *
embeddedartists 0:7ce952ea2c4c 100 * Processing:
embeddedartists 0:7ce952ea2c4c 101 * See function.
embeddedartists 0:7ce952ea2c4c 102 *
embeddedartists 0:7ce952ea2c4c 103 * Parameters:
embeddedartists 0:7ce952ea2c4c 104 * win : Window identifier
embeddedartists 0:7ce952ea2c4c 105 * cx :
embeddedartists 0:7ce952ea2c4c 106 * cy :
embeddedartists 0:7ce952ea2c4c 107 * x :
embeddedartists 0:7ce952ea2c4c 108 * y :
embeddedartists 0:7ce952ea2c4c 109 * Filled :
embeddedartists 0:7ce952ea2c4c 110 *
embeddedartists 0:7ce952ea2c4c 111 * Outputs: None
embeddedartists 0:7ce952ea2c4c 112 *
embeddedartists 0:7ce952ea2c4c 113 * Returns: Nothing
embeddedartists 0:7ce952ea2c4c 114 *
embeddedartists 0:7ce952ea2c4c 115 * Notes: None
embeddedartists 0:7ce952ea2c4c 116 *
embeddedartists 0:7ce952ea2c4c 117 **********************************************************************/
embeddedartists 0:7ce952ea2c4c 118 void Graphics::plot4points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:7ce952ea2c4c 119 {
embeddedartists 0:7ce952ea2c4c 120 int16_t x0, x1, y0, y1;
embeddedartists 0:7ce952ea2c4c 121
embeddedartists 0:7ce952ea2c4c 122 y0 = cy + y;
embeddedartists 0:7ce952ea2c4c 123 y1 = cy - y;
embeddedartists 0:7ce952ea2c4c 124 if( Filled )
embeddedartists 0:7ce952ea2c4c 125 {
embeddedartists 0:7ce952ea2c4c 126 for( x0=cx - x; x0<=cx + x; x0++ )
embeddedartists 0:7ce952ea2c4c 127 {
embeddedartists 0:7ce952ea2c4c 128 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:7ce952ea2c4c 129 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:7ce952ea2c4c 130 if ((x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:7ce952ea2c4c 131 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:7ce952ea2c4c 132 }
embeddedartists 0:7ce952ea2c4c 133 }
embeddedartists 0:7ce952ea2c4c 134 else
embeddedartists 0:7ce952ea2c4c 135 {
embeddedartists 0:7ce952ea2c4c 136 x0 = cx + x;
embeddedartists 0:7ce952ea2c4c 137 x1 = cx - x;
embeddedartists 0:7ce952ea2c4c 138 if ((x0>=0) && (x0<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:7ce952ea2c4c 139 this->pFrmBuf[x0 + (this->windowX*y0)] = color;
embeddedartists 0:7ce952ea2c4c 140 if ((x != 0) &&
embeddedartists 0:7ce952ea2c4c 141 (x1>=0) && (x1<this->windowX) && (y0>=0) && (y0<this->windowY))
embeddedartists 0:7ce952ea2c4c 142 this->pFrmBuf[x1 + (this->windowX*y0)] = color;
embeddedartists 0:7ce952ea2c4c 143 if ((y != 0) &&
embeddedartists 0:7ce952ea2c4c 144 (x0>=0) && (x0<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:7ce952ea2c4c 145 this->pFrmBuf[x0 + (this->windowX*y1)] = color;
embeddedartists 0:7ce952ea2c4c 146 if ((x != 0 && y != 0) &&
embeddedartists 0:7ce952ea2c4c 147 (x1>=0) && (x1<this->windowX) && (y1>=0) && (y1<this->windowY))
embeddedartists 0:7ce952ea2c4c 148 this->pFrmBuf[x1 + (this->windowX*y1)] = color;
embeddedartists 0:7ce952ea2c4c 149 }
embeddedartists 0:7ce952ea2c4c 150 }
embeddedartists 0:7ce952ea2c4c 151
embeddedartists 0:7ce952ea2c4c 152 /***********************************************************************
embeddedartists 0:7ce952ea2c4c 153 *
embeddedartists 0:7ce952ea2c4c 154 * Function: plot8points
embeddedartists 0:7ce952ea2c4c 155 *
embeddedartists 0:7ce952ea2c4c 156 * Purpose:
embeddedartists 0:7ce952ea2c4c 157 *
embeddedartists 0:7ce952ea2c4c 158 * Processing:
embeddedartists 0:7ce952ea2c4c 159 * See function.
embeddedartists 0:7ce952ea2c4c 160 *
embeddedartists 0:7ce952ea2c4c 161 * Parameters:
embeddedartists 0:7ce952ea2c4c 162 * win : Window identifier
embeddedartists 0:7ce952ea2c4c 163 * cx :
embeddedartists 0:7ce952ea2c4c 164 * cy :
embeddedartists 0:7ce952ea2c4c 165 * x :
embeddedartists 0:7ce952ea2c4c 166 * y :
embeddedartists 0:7ce952ea2c4c 167 * Filled :
embeddedartists 0:7ce952ea2c4c 168 *
embeddedartists 0:7ce952ea2c4c 169 * Outputs: None
embeddedartists 0:7ce952ea2c4c 170 *
embeddedartists 0:7ce952ea2c4c 171 * Returns: Nothing
embeddedartists 0:7ce952ea2c4c 172 *
embeddedartists 0:7ce952ea2c4c 173 * Notes: None
embeddedartists 0:7ce952ea2c4c 174 *
embeddedartists 0:7ce952ea2c4c 175 **********************************************************************/
embeddedartists 0:7ce952ea2c4c 176 void Graphics::plot8points( int32_t cx, int32_t cy, int32_t x, int32_t y, int16_t color, int32_t Filled )
embeddedartists 0:7ce952ea2c4c 177 {
embeddedartists 0:7ce952ea2c4c 178 plot4points( cx, cy, x, y, color, Filled );
embeddedartists 0:7ce952ea2c4c 179 if (x != y)
embeddedartists 0:7ce952ea2c4c 180 plot4points( cx, cy, y, x, color, Filled );
embeddedartists 0:7ce952ea2c4c 181 }
embeddedartists 0:7ce952ea2c4c 182
embeddedartists 0:7ce952ea2c4c 183 /***********************************************************************
embeddedartists 0:7ce952ea2c4c 184 *
embeddedartists 0:7ce952ea2c4c 185 * Function: swim_put_circle
embeddedartists 0:7ce952ea2c4c 186 *
embeddedartists 0:7ce952ea2c4c 187 * Purpose:
embeddedartists 0:7ce952ea2c4c 188 *
embeddedartists 0:7ce952ea2c4c 189 * Processing:
embeddedartists 0:7ce952ea2c4c 190 * See function.
embeddedartists 0:7ce952ea2c4c 191 *
embeddedartists 0:7ce952ea2c4c 192 * Parameters:
embeddedartists 0:7ce952ea2c4c 193 * win : Window identifier
embeddedartists 0:7ce952ea2c4c 194 * cx :
embeddedartists 0:7ce952ea2c4c 195 * cy :
embeddedartists 0:7ce952ea2c4c 196 * radius :
embeddedartists 0:7ce952ea2c4c 197 * Filled :
embeddedartists 0:7ce952ea2c4c 198 *
embeddedartists 0:7ce952ea2c4c 199 * Outputs: None
embeddedartists 0:7ce952ea2c4c 200 *
embeddedartists 0:7ce952ea2c4c 201 * Returns: Nothing
embeddedartists 0:7ce952ea2c4c 202 *
embeddedartists 0:7ce952ea2c4c 203 * Notes: None
embeddedartists 0:7ce952ea2c4c 204 *
embeddedartists 0:7ce952ea2c4c 205 **********************************************************************/
embeddedartists 0:7ce952ea2c4c 206 void Graphics::put_circle( int32_t cx, int32_t cy, int16_t color, int32_t radius, int32_t Filled )
embeddedartists 0:7ce952ea2c4c 207 {
embeddedartists 0:7ce952ea2c4c 208 int32_t Error = -radius;
embeddedartists 0:7ce952ea2c4c 209 int16_t x = radius;
embeddedartists 0:7ce952ea2c4c 210 int16_t y = 0;
embeddedartists 0:7ce952ea2c4c 211
embeddedartists 0:7ce952ea2c4c 212 while( x >= y )
embeddedartists 0:7ce952ea2c4c 213 {
embeddedartists 0:7ce952ea2c4c 214 plot8points( cx, cy, x, y, color, Filled );
embeddedartists 0:7ce952ea2c4c 215
embeddedartists 0:7ce952ea2c4c 216 Error += y;
embeddedartists 0:7ce952ea2c4c 217 ++y;
embeddedartists 0:7ce952ea2c4c 218 Error += y;
embeddedartists 0:7ce952ea2c4c 219
embeddedartists 0:7ce952ea2c4c 220 if( Error >= 0 )
embeddedartists 0:7ce952ea2c4c 221 {
embeddedartists 0:7ce952ea2c4c 222 --x;
embeddedartists 0:7ce952ea2c4c 223 Error -= x;
embeddedartists 0:7ce952ea2c4c 224 Error -= x;
embeddedartists 0:7ce952ea2c4c 225 }
embeddedartists 0:7ce952ea2c4c 226 }
embeddedartists 0:7ce952ea2c4c 227 }
embeddedartists 0:7ce952ea2c4c 228
embeddedartists 0:7ce952ea2c4c 229
embeddedartists 0:7ce952ea2c4c 230